Home / 13,239.14-19,880.67-11,064.74

Finding the Fourth Proportional to 13,239.14, 19,880.67 and 11,064.74

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Solution

The fourth proportional to 13,239.14, 19,880.67 and 11,064.74 is: 16,615.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,239.14 : 19,880.67 = 11,064.74 : x
  2. Step 2: Convert to fraction form
    13,239.14/19,880.67 = 11,064.74/x
  3. Step 3: Cross multiply
    13,239.14x = 19,880.67 × 11,064.74
  4. Step 4: Simplify right side
    13,239.14x = 219,974,444.58
  5. Step 5: Solve for x
    x = 219,974,444.58/13,239.14
  6. Step 6: Final answer
    x = 16,615.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.